[Python-Dev] Computed Goto dispatch for Python 2
raymond.hettinger at gmail.com
Thu May 28 14:46:56 CEST 2015
> On May 28, 2015, at 1:54 AM, Berker Peksağ <berker.peksag at gmail.com> wrote:
> * Performance improvements are not bug fixes
Practicality beats purity here.
Recognize that a huge number of Python users will remain in the Python2.7 world
for some time. We have a responsibility to the bulk of our users (my estimate is
that adoption rate for Python 3 is under 2%). The computed goto patch makes
substantial performance improvements. It is callous to deny the improvement
to 2.7 users.
> * The patch doesn't make the migration process from Python 2 to Python 3 easier
Sorry, that is a red-herring (an orthogonal issue).
If you care about 2-to-3 migration, then start
opposing proposals for API changes that increase
the semantic difference between 2 and 3.
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